標題: Enhanced charge transfer character of photoexcited states of dye sensitizer on the N719/TiO2 interface as revealed by electroabsorption spectra
作者: Awasthi, Kamlesh
Hsu, Hung-Yu
Diau, Eric Wei-Guang
Ohta, Nobuhiro
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
關鍵字: Dye sensitized solar cell;TiO2;Ruthenium complex;Electroabsorption spectrum;Interfacial electron transfer
公開日期: 15-Aug-2014
摘要: Electroabsorption (E-A) spectra of (Bu4N)(2)[Ru(dcbpyH)(2)(NCS)(2)] (N719) sensitized on TiO2 nanoparticles are very different from those of the N719 solid film. In contrast with N719 fixed in a solid form, N719 adsorbed on TiO2 shows a significant electric field effect on absorbance, indicating the strong interaction in the surface between N719 and TiO2. The magnitude of the change in electric dipole moment following absorption of N719 sensitized on TiO2 is much greater than that of the sold film, suggesting that the interfacial charge transfer occurs following photoexcitation of N719 adsorbed on TiO2 surface. (C) 2014 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jphotochem.2014.05.001
http://hdl.handle.net/11536/24832
ISSN: 1010-6030
DOI: 10.1016/j.jphotochem.2014.05.001
期刊: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume: 288
Issue: 
起始頁: 70
結束頁: 75
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